A2 Golf - Horn Won't Quit

That was a standard feature in 1992....it's to let you know that the car is running...

It's the DRH...Daytime Running Horn.

:)

Not sure that I understand why the thing would keep sounding after pulling the relay, but it's possible that w/o the right diagram that the relay you pulled wasn't the right one.

VW horns are fed 12V power pretty much anytime the ignition is on but they are not grounded until you hit the button on the wheel (at least that's my understanding of how they're wired). In essence, they're switched ground instead of switched 12V+. Pop off your horn button and you will have two wires...they're both for the ground circuit but what happens is that one goes to the '-' on the horn and the other goes to ground on the car somewhere. When you hit the horn button, it causes metal-to-metal contact/continuity between the two wires, therefore makes continuity to ground, and your horn sounds. Something tells me they're grounding all the time instead of only when you press the button. Look for any chafing or whatever that might cause the horn wires to ground out even when you're not pressing on the button. That's my suspicion anyway.

on jetta 1991 is relay #11 if you want the wire diagram i can send you

I don't know how the 1992 A2's are set up but my wife's older Jetta did this once. The problem was the screws that held the turn signal and wiper switch assemblies inside the steering column. The screws had loosened and backed out enough that they were grounding the wiring and honking the horn. I pulled the steering wheel, put a little locktight on the screws, and tightened them back down. Problem solved.

Anthony

As if you'd need that in an A2 Diesel.

SCNR, Erik.